package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Set;


/**
 * 菜品管理
 */
@RestController(value = "AdminDishController")
@RequestMapping("/admin/dish")
@Api(tags = "菜品管理")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 添加菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("添加菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        dishService.saveWithFlavor(dishDTO);

        //清除redis缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }



    /**
     * 分页查询菜品
     * @param dishPageQueryDTO
     * @return
     */
    @ApiOperation("分页查询菜品")
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @ApiOperation("批量删除菜品")
    @DeleteMapping
    public Result delete(@RequestParam List<Long> ids){
        dishService.deleteBatch(ids);

        //将所有菜品的redis缓存数据刪除
        cleanCache("dish_*");

        return Result.success();
    }


    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @ApiOperation("根据id查询菜品")
    @GetMapping("/{id}")
    public Result<DishVO> getById(@PathVariable Long id){
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }


    /**
     * 修改菜品信息
     * @param dishDTO
     * @return
     */
    @ApiOperation("修改菜品信息")
    @PutMapping
    public Result update(@RequestBody DishDTO  dishDTO){
        dishService.updateWithFlavor(dishDTO);

        //将所有菜品的redis缓存数据刪除
        cleanCache("dish_*");

        return Result.success();
    }


    /**
     * 起售停售菜品
     * @param status
     * @param id
     * @return
     */
    @ApiOperation("起售停售菜品")
    @PostMapping("/status/{status}")
    public Result startOrStop(@PathVariable Integer status, Long id){
        dishService.startOrStop(status, id);

        //将所有菜品的redis缓存数据刪除
        cleanCache("dish_*");

        return Result.success();
    }


    /**
     * 根据分类id查询菜品信息
     *
     * @param categoryId
     * @return
     */
    @ApiOperation("根据分类id查询菜品信息")
    @GetMapping("/list")
    public Result<List<Dish>> getByCategoryId(Long categoryId){
        List<Dish> dishs = dishService.getByCategoryId(categoryId);
        return Result.success(dishs);
    }


    /**
     * 根据传入的key，将菜品的redis缓存数据刪除
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
